Liquid-spraying device.



G. H. GILMAN.

LIQUID S'PBAYING DEVICE.

APPLICATION FILED DEC-18.1912.

1,251,455. v I Patented Dec. 25,1917.

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azgm, 9 7 @311 M am UNITED STATES PATE T OFFICE.

' GEORGE E. GILMAN, or cLAREMoN'r, NEW namrsnmn, assrelvon, BY mnsma: Assisi:-

, MENTS, TO SULLIVAN MACHINERY COMPANY, OF BOSTON, MASSACHUSETTS,

CORPORATION OF MASSACHUSETTS.

LIeUIn-srnavme DEVICE.

Application filed December 18, 1912. Serial No. 737,301.

T 0 all whom it may concern:

Be it known that I, GEORGE H. GILMAN, a ed upon the tool, and interposed between the citizen of the United States, and a resident tool inlet 9 and the throttle valve 11, so that of Claremont, county 'of- Sullivan, State of when the latter is'brought into play to shut New Hampshire, whose post-oflice address is off the supply of motive fluid to the tool, the Claremont, New Hampshire have invented supply of motive fluid to the spraying dean Improvement in Liquid-Spraying Devicewill be shut ofi by the same means.

Specification of Letters Patent. Patented Dec. 25, 1917.

vices, of which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts.

This invention relates to improvements in liquid spraying devices, and. more particularly though not exclusively to water spraying devices stone-working, and other similar tools.

My invention 'iwill be best understood by 7 reference to the following specification,

when taken in connection with the accompanying drawings, showing two illustrative embodiments thereof, while its scope will be more particularly pointed out in the appended claims.

In the drawings v -Figure 1 is a general view in elevation of one form. of spraying device embodying my invention, as applied to a stone-working tool of the percussion type; I

Fig. 2 is a plan section on an enlarged scale of the sprayingdevice shown in Fig.1; Fig. 3 is a sectional Fig.2;

Fig. 4 is a sectional view on line 44 of Fig.2;and s Fig. 5 is a general view, partly in section andpartly in elevation, of anothqr form of spraying apparatus embodying 1 ny.inven-' tion.

' illustrative purposes, I', ave shown a sprayin device in connection with a. pressure- T fiuld hammer drill, comprising a drill-bit 5,

a tool cylinder 6,;a pressure-fluidfeed cylinder 7, and a tool-rotating handle 8.

' The drill tool cylinder is provided with a pressure-fluid inlet 9, which receives its supply of pressure fluid for the actuation of the drill through a usual fiexible'conduit for pressure-fluid actuated,

view on line 33-3 of- Referring first to Figs. 1 to -4, inclusive? The illustrative spraying device designated generally by the numeral 12 (Fig. 1

Figs. 1 to 4, inclusive, is preferably mountcomprises a casing or bod 13, provided wit 1 iniet elbow 18 threaded into one end of the bushing, while the other end of the bushing isprovided with a nipple 19: threaded'into the inlet of the tool. The bushing 15 is provided with one or more, herein two, radial passages 20 from the central passage 17 and communicating'withan annular groove 21 formed in the periphery of. the bushing. This groove communicates with a passage '22 formed in the body or casing 13,and

communication with the. interior of th'e bushing, regardless of the angular position of the radial passages 20. For convenience in drilling the hole 22, the casing 13 maybe consequently said passage is at all times in provided with a hole 23, having a plug 24 threaded therein. V

As a means for employing a portion of the I pressure fluid to draw a supply of water or ptherliqliid from a suitable source of supply into the s'raying device, and to atomi'zefit so that it will issue from the nozzle in the formof aspray about the entrance of the drilled hole, I provide a conduit 25, swiveled in a'passage 26 provided in the casing or body 13 said nalpassage 27 normally commumcating with the passage 22 through .a lateralp'assage 28. The passage 27 is preferably of a into a constricted throat 29 of a passage 30- 10, the supply bein under the control of a providedin the body 13. ,fa ommunicating suitable throttle va ve 11 of common form. with the passage 30 and enclrclmg the conconduit having a centrally located lon' tudi-' The illustrative spraying device shown induit 25 is a suction'chamber 31, the latter communicating with a" suction passage 32 receivin a supply of water or other liquid, herein t irou h a flexible conduit 33 leadmg 1 from a suita le source of supply, as for example, a pail 34. v

The stream of pressure fluid flowing at high velocity through thethroat 29 creates in the passage 30, suction chamber 31 and connections leading to the source of supply of liquid, a suction or partial vacuum on the familiar principle of an ejector, and atomizes the water, ejecting the. latter in the form of a spray through a suitable nozzle 35. The latter may be of any suitable form, but herein is provided with a stem 36 threaded into the body 13, and is provided witha passage 37 having a constricted portion, or throat, 38 inalinement with the central passage 27 of the conduit 25. By this means, the atomized water is caused to emerge from the IIOZZle in the form of a spray having a generally conical form. The nozzle 35 will be so placedas to cause the spray to be projected 'in a circle about the entrance of the drilled hole, so as to lay the obnoxious dust caused by the pulverizing of the stone in the drilling operation. While the supply of water to the atomizer may be regulated in any other suitable manner, the conduit 25 constitutes at its forward end a valve 39, herein of conical form,

v and the casing 13 is provided with a corresponding seat 40 .for the valve. By this means, the valve when adjusted longitudinally to the proper extent, may be utilized at will to regulate the supply of liquid, or

shut it ofi entirely. To this end, the conduit 25 is preferably provided with a screwthreaded shank 41, constituting a regulating screw threaded into the body or casing 13, and provided exteriorly of the latter with a suitable grasping handle 42, by means of which the screw may be utilized to advance or retract the valve 39 to regulate or cut ofi the supply of liquid. While the longitudinal motion of the conduit 25 is herein passage 28 will be' out of-registe'r with the utilized to regulate or shut ofi the supply of liquid, the turning movement of the con-. duit may be utilized to regulate or to shut off the supply of pressure fluid. To this end, the passage 28 inthe conduit is preferably so proportioned and so placed, that when the valve 39 is seated on its seat 40, the

passage 22, sothat by a single continuous turning movement of the adjusting screw, the conduit 25 may be utilized at ,will to regulate the supply of liquid, or to shut oil the supp'l} of liquid and the supply of pressure fluid.

. In the operation of tools' offthis class, the vibration is apt to cause the screws to gradually turn, and hence inthe' case of the-valve regulatin screw 41,. which constitutes a male me'm er, it is desirable to provide some means for holding the regulating screw against accidental turning movement, and to that end, I preferably provide a springpressed plate or nut 43, constituting a female member, threaded onto the regulating screw to hold the latter with a yielding, frictional engagement. Herein, this plate is provided with a tongue 44, located in the groove 45 provided in the body 1.3, and constituting a means for holding the plate against turning movement. While spring pressure maybe applied to the plate 43 in any other suitable manner, I herein provide the body 13 with a cylindrical recess 46, having therein a suitable spring 47 bearing at one end against a plunger or pin 48, and urging the latter a ainst the plate43, thus tending to incline t c axis of the latter with respect to the axis ot the adjusting screw, and thereby exerting a kind of cramping action thereon. The described device, therefore, forms an exceedingly simple and effective means for holding the regulating screw fixed against accidental turning movement, while permitting the same to be adjusted at will from time to time in the operation of the tool.

Referring now to Fig. 5, wherein I have shown another form of spraying apparatus 49, is submerged in a supply of liquid 50, and

is connected to a discharge nozzle 51 on the tool or tool support by connections including a flexible conduit 52. The spraying de' vice 49 comprises a body or casing 53 provided with a supply passage 54 communicating with a suction chamber 55, the latter encirclinga pressure fluid conduit 56 provided with a pressure fluid supply passage 57 which latter discharges a supply of the motive fluid into the passage 54, thus creating in the suction chamber 55 a suction or partial vacuum, which acts to draw *in a supply of the liquid and discharge the same into the forward end of the passage 54. The suction chamber 55 may communicate, through one or more openings 58, with the liquid supply, and these openings may, if desired, be provided with screens 59 to prevent the entrance of sediment or other foreign matter, which might interfere with the operation of the device.

I While the supply of liquid to the spraying device may. be regulated or shut off m any other suitable manner, the forward end of the conduit '56 isin the form of a valve 60, adapted to coiiperate with the valve seat 61. As a means for adjusting the valve toward and "from its seat, the conduit 56 may be provided with a threaded stem 62 constituting a regulating screw, which may be held in the selected osition of adjustment by means of a suitale l k-n t which V fluid (not shown) and the supply of pres-- latter if desired may besimilar to the look.- ing plate or nut 43, above described.-

While the conduit 56 may receive its supply of pressure fluid in any other suitable manner, in this form of my invention it is connected by suitable connections, including a flexible conduitfi, to a source of pressure sure fluid admitted to the spraying device may be controlled by a suitable valve interposed in the conduit between the source of supply and the spraying device. In practice, I have found that with a spraying device of this character, it is possibleto connect to the discharge end'of the spraying device proper several flexible conduits provided with nozzles, by means of which the spray may be utilized at various points to lay the dust, but herein for the sake of simplicity in the drawings, I have showna single hose or conduit and discharge nozzle, the latter being secured, by means of asuitable clamp 66 to a support 67,, which may be a tool-supporting post. The supply of spray to the nozzle 51 maybe regulated by suitable means, as for example a throttle valve 68, interposed between the nozzle and the atomizer. In the use of a spraying apparatus of this character, it is found in practice that the. liquid,'after being atomized, may be carried through conduits a distance of a number of feet, and issue from the discharge nozzle or nozzles in the form of spray capable of laying the dust in a quarry or mine in a most satisfactory manner.

While I have herein shown and described two embodiments of my invention for illusf trative purposes, and have disclosed and discussed in detail the construction and arrangem'en't incidental to two specific applications thereof, it is to be understood that the invention is limited neither to the mere details or relative arrangement of parts nor to the specific embodiments herein shown, but that extensive deviations from the illustrated forms or embodiments of the invention may be made, without departing from the principles thereof. o

Having thus described my invention,what I claim and desire by Letters Patent to procure 1s 1. In a fluid system, a motive fluid actu ated device having an inlet, inlet controlling means, a liquid spraying device communicating with said inlet and disposed between said motive fluid actuated device and said controlling means, and means independent of said controlling means adjustable at will to regulate thesupply of liquid to be sprayed or to shut ofl the supply of motive fluid tosaid spraying device.

2. In a fluid system, a motive fluid .actuated device having an inlet, inlet controlling means, a liquid spraying device communi-' eating with said inlet and disposed between ing, device.-

, ated devicehaving an inlet, inlet controlling means, a liquid spraying device communicat ing with said inlet and disposedbetween said motive fluid actuated device and said controlling means, and means independent of said controlling means adjustable at will to regulate the'supply of liquid to be sprayed while preserving a constant motive fluid supply thereto or to shut ofl the liquid and the motive fluid. l

4. In a. fluid system, a motive fluid actuated device having an inlet, inlet controlling means, a liquid spraying device communicating with said inlet-and disposed between said motive fluid actuated device and said controlling means, and means including a single member adjustable at will to regulate the supply of liquid to be sprayed or to shut 5. In a fluid system a motivefluid actuated device having an inlet, inlet controlling means, a liquidspraying device communicat ing with said inlet and disposed between said motive fluid actuated device and said controllingmeans, and means including a single member longitudinally and rotatably adjustable at willto regulate or shut ofl the supply of liquid to be sprayed or to shut off the supply of motive fluid to the spraying device. L

6. In a fluid system a motive fluid actuated device having an lnlet, inlet controlling means, a liquid spraying device communicating with said inlet and disposed between said motive fluid actuated device and said controlling means, and means including a single longitudinally and laterally adjust and longitudinal ports and adjustable at will to regulate the supply of liquid to be sprayed While preserving a' constant motive fluid supply thereto or to shut ofl the liquid and the motive fluid. I i

7. In a fluid system, a motive fluid actuated device having an inlet, a liquid spray-' ing device connected in said inlet,'means on said spraying device for regulating'at Wlll the supply of liquid or fluid to be sprayed or shutting oif the supply of the same to said sprayingdevice, and controlling means in said inlet for simultaneously shutting ofl the flow of motivefluid to said fluid actuated device and said spraying device.

8. In a motive fluid actuated liquid spraying device, a rotatablymounted casing, a recelving member forming a support therefor and having an internal chamber provided off-the supply of motive fluid to said spray- 110 able member having. communicating lateral with a communicating lateral passage, one of said elements being provided with an annular passage communicatingwith said lateral passage, a spray outlet carried by said casing and rotatable with said casing relative to said receiving member to vary the direction of spray delivery, and a rotatable valve member communicating with said'lateral and annular passages and with said outlet.

9. In a motive fluid actuated liquid spraying device, a casing, a rotatable receiving member connected thereto having an internal chamber, and provided with a radial passage therefrom and an annular passage communicating with said radial passage, a spray outlet member, and a rotatable valve member having passages therein communi cating with said annular passage and said outlet member.

10. In a motive fluid actuated liquid spraying device, a rotatable member having an internal chamber and having a radial passage communicating with an annular passage in its periphery, a casing journaled on said member and having a passage communicating with said annular passage, a spray outlet carried by said casing, means for supplying liquid to a point adjacent said outlet, and a valve adjustable toward or from said outlet having a passage communicating therewith and with the passagein said casing.

11. In a motive fluid actuated liquid spraying device, a rotatable member having an internal chamber and a series of radial passages communicating with an annular passage in its periphery, a casing journaled on said member and having a passage communicating with said annular passage, a

vspray outlet carried by said casing, means for supplying liquid to apoint adjacent said outlet, a valve adjustable'toward or from said outlet having a passage communicating therewith and with the passage in said casing, and a spray nozzle disposed in alinement with said spray outlet.

12. In combination a motive fluid actuated device, amotive fluid inlet therefor, a spraying device carried on said inlet, one of said last-mentioned elements being rotatable relat ve to the other, and means for main-- taimng a constant supply of fluid from said inlet to said spraying device in any position of said elements.

13. In combination a motive fluid actuated device, a motive fluid inlet therefor, a spraying device journaled on said inlet and rotatable relative thereto, means for supplying liquid to said spraying device, and means for maintaining a constant supply of fluid'through said inlet to said spraying device in any position of said .elements.

14. In combination, a pressure actuated device, a rotatable inlet member connected thereto, means for controlling the flow of fluid through said inlet, a spraying device carried on said inlet member, one of said elements being freely rotatable relative to the other, means for supplying liquid to said spraying device, and means for maintaining a constant flow of fluid through said inlet into said spraying device in any position of said elements.

15. In combination, a pressure actuated device, a rotatableinlet member connected thereto, means for controlling the flow of fluid through said inlet, a spraying device carried on said inlet member, one of said elements being freely rotatable relative to the other, means for supplying liquid to said spraying device, means for maintaining a constant flow of fluid through said inlet into said spraying device in any position of said elements, and means on said spraying device for regulating the flow of liquid.

16. In combination, a pressure actuated device, a rotatable inlet member connected thereto, means for controlling the flow of fluid through said inlet, a spraying device carried on said inlet member, one of said elements being freely rotatable relative to the other, means or supplying liquid to said spraying device, means for maintaining a constant flow of fluid through said inlet into.

name to this specification, in the presence.

of two subscribin witnesses.

. GEORGE H. GILMAN. Witnesses: I

' E. J. BURCHARD,

CHAS. J. JoNEs. 

